115566651 has 48 divisors (see below), whose sum is σ = 182108160. Its totient is φ = 70424640.

The previous prime is 115566643. The next prime is 115566677. The reversal of 115566651 is 156665511.

It is not a de Polignac number, because 115566651 - 2³ = 115566643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115566691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 604966 + ... + 605156.

It is an arithmetic number, because the mean of its divisors is an integer number (3793920).

Almost surely, 2^115566651 is an apocalyptic number.

115566651 is a deficient number, since it is larger than the sum of its proper divisors (66541509).

115566651 is a wasteful number, since it uses less digits than its factorization.

115566651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 333 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 115566651 is about 10750.1930680337. The cubic root of 115566651 is about 487.0918271777.

The spelling of 115566651 in words is "one hundred fifteen million, five hundred sixty-six thousand, six hundred fifty-one".